From: Arnaud Giersch <arnaud.giersch@iut-bm.univ-fcomte.fr>
Date: Tue, 18 Jan 2011 10:26:47 +0000 (+0100)
Subject: Interchange lb_iter and comp_iter, and improve process main loop.
X-Git-Tag: v0.1~188^2~33
X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/loba.git/commitdiff_plain/96311be045a24d96c20acfc876b43c91858464e4?ds=inline;hp=9ec598fc7b8d73ed8e9822aed084ad1e1b2918b6

Interchange lb_iter and comp_iter, and improve process main loop.
---

diff --git a/options.cpp b/options.cpp
index dc29495..aa953f9 100644
--- a/options.cpp
+++ b/options.cpp
@@ -54,8 +54,8 @@ namespace opt {
 
     // Parameters for the end of the simulation
     // fixme: find better defaults
-    unsigned comp_maxiter = 10;
-    unsigned lb_maxiter = comp_maxiter;
+    unsigned lb_maxiter = 10;
+    unsigned comp_maxiter = 0;
     double time_limit = 0;
     bool exit_on_close = false;
 
@@ -203,12 +203,10 @@ bool opt::parse_args(int* argc, char* argv[])
             opt::comm_cost = cost_func(optarg);
             break;
         case 'i':
-            std::istringstream(optarg) >> opt::comp_maxiter;
+            std::istringstream(optarg) >> opt::lb_maxiter;
             break;
         case 'I':
-            std::istringstream(optarg) >> opt::lb_maxiter;
-            ERROR0("option -I not implemented yet");
-            result = false;
+            std::istringstream(optarg) >> opt::comp_maxiter;
             break;
         case 'l':
             std::istringstream(optarg) >> opt::log_rate;
@@ -292,10 +290,10 @@ void opt::print()
     DESCR("computation cost factors", "[%s]", comp_cost.to_string().c_str());
     DESCR("communication cost factors", "[%s]", comm_cost.to_string().c_str());
     DESCR("minimum duration between iterations", "%g", min_iter_duration);
-    DESCR("maximum number of comp. iterations", "%s",
-          h.val_or_string(comp_maxiter, "infinity"));
     DESCR("maximum number of lb. iterations", "%s",
           h.val_or_string(lb_maxiter, "infinity"));
+    DESCR("maximum number of comp. iterations", "%s",
+          h.val_or_string(comp_maxiter, "infinity"));
     DESCR("time limit", "%s", h.val_or_string(time_limit, "infinity"));
     DESCR("exit on close", "%s", h.on_off(exit_on_close));
     INFO0("`----");
@@ -371,11 +369,11 @@ void opt::usage()
 
     std::clog << "\nParameters for the end of the simulation\n";
     std::clog << o("-i value")
-              << "maximum number of comp. iterations, 0 for infinity"
-              << " (" << opt::comp_maxiter << ")\n";
-    std::clog << o("-I value")
               << "maximum number of lb. iterations, 0 for infinity"
               << " (" << opt::lb_maxiter << ")\n";
+    std::clog << o("-I value")
+              << "maximum number of comp. iterations, 0 for infinity"
+              << " (" << opt::comp_maxiter << ")\n";
     std::clog << o("-t value")
               << "time limit (simulated time), 0 for infinity"
               << " (" << opt::time_limit << ")\n";
diff --git a/options.h b/options.h
index 20a1683..fe0df82 100644
--- a/options.h
+++ b/options.h
@@ -45,8 +45,8 @@ namespace opt {
     extern double min_iter_duration;
 
     // Parameters for the end of the simulation
-    extern unsigned comp_maxiter;
     extern unsigned lb_maxiter;
+    extern unsigned comp_maxiter;
     extern double time_limit;
     extern bool exit_on_close;
 
diff --git a/process.cpp b/process.cpp
index 0afbf29..9f46f8f 100644
--- a/process.cpp
+++ b/process.cpp
@@ -80,39 +80,40 @@ int process::run()
             next_iter_after_date = MSG_get_clock() + opt::min_iter_duration;
         }
 
-        if (load > 0.0) {
-            ++comp_iter;
-            if (opt::log_rate && comp_iter % opt::log_rate == 0) {
+        double ld = lb_load();
+        if (ld > 0.0) {
+            ++lb_iter;
+
+            if (opt::log_rate && lb_iter % opt::log_rate == 0) {
                 if (opt::bookkeeping)
                     INFO4("(%u:%u) current load: %g ; expected: %g",
-                          comp_iter, lb_iter, load, expected_load);
+                          lb_iter, comp_iter, load, expected_load);
                 else
                     INFO2("(%u) current load: %g",
-                          comp_iter, load);
+                          lb_iter, load);
             }
 
-            double ld = lb_load();
             ld -= load_balance(ld);
-            lb_load() = ld;
 
             print_loads(true, xbt_log_priority_debug);
+        }
+        lb_load() = ld;
 
-            send();
+        // send load information, and load (data) if any
+        send();
+        if (load > 0.0) {
+            ++comp_iter;
             compute();
-
-        } else {
-            // send load information, and load when bookkeeping
-            send();
         }
 
-        if (opt::comp_maxiter && comp_iter >= opt::comp_maxiter) {
-            VERB2("Reached comp_maxiter: %d/%d", comp_iter, opt::comp_maxiter);
-            break;
-        }
         if (opt::lb_maxiter && lb_iter >= opt::lb_maxiter) {
             VERB2("Reached lb_maxiter: %d/%d", lb_iter, opt::lb_maxiter);
             break;
         }
+        if (opt::comp_maxiter && comp_iter >= opt::comp_maxiter) {
+            VERB2("Reached comp_maxiter: %d/%d", comp_iter, opt::comp_maxiter);
+            break;
+        }
         if (opt::time_limit && MSG_get_clock() >= opt::time_limit) {
             VERB2("Reached time limit: %g/%g", MSG_get_clock(), opt::time_limit);
             break;
@@ -156,13 +157,13 @@ int process::run()
     VERB0("Done.");
     if (opt::bookkeeping) {
         INFO4("Final load after %d:%d iterations: %g ; expected: %g",
-              comp_iter, lb_iter, load, expected_load);
+              lb_iter, comp_iter, load, expected_load);
     } else {
         INFO2("Final load after %d iterations: %g",
-              comp_iter, load);
-        if (comp_iter != lb_iter)
-            WARN2("comp_iter (%d) and lb_iter (%d) differ!",
-                  comp_iter, lb_iter);
+              lb_iter, load);
+        if (lb_iter != comp_iter)
+            WARN2("lb_iter (%d) and comp_iter (%d) differ!",
+                  lb_iter, comp_iter);
     }
     return 0;
 }